diff --git a/runtime/filetype.vim b/runtime/filetype.vim
index 40b17a0..99a12d9 100644
--- a/runtime/filetype.vim
+++ b/runtime/filetype.vim
@@ -663,7 +663,7 @@
 au BufNewFile,BufRead *.dtd			setf dtd
 
 " DTS/DSTI/DTSO (device tree files)
-au BufNewFile,BufRead *.dts,*.dtsi,*.dtso,*.its	setf dts
+au BufNewFile,BufRead *.dts,*.dtsi,*.dtso,*.its,*.keymap	setf dts
 
 " Earthfile
 au BufNewFile,BufRead Earthfile			setf earthfile
diff --git a/src/testdir/test_filetype.vim b/src/testdir/test_filetype.vim
index 3ee1cd7..a26a3f0 100644
--- a/src/testdir/test_filetype.vim
+++ b/src/testdir/test_filetype.vim
@@ -215,7 +215,7 @@
     dracula: ['file.drac', 'file.drc', 'filelvs', 'filelpe', 'drac.file', 'lpe', 'lvs', 'some-lpe', 'some-lvs'],
     dtd: ['file.dtd'],
     dtrace: ['/usr/lib/dtrace/io.d'],
-    dts: ['file.dts', 'file.dtsi', 'file.dtso', 'file.its'],
+    dts: ['file.dts', 'file.dtsi', 'file.dtso', 'file.its', 'file.keymap'],
     dune: ['jbuild', 'dune', 'dune-project', 'dune-workspace'],
     dylan: ['file.dylan'],
     dylanintr: ['file.intr'],
diff --git a/src/version.c b/src/version.c
index 6d9a18c..da75e4b 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    273,
+/**/
     272,
 /**/
     271,